防止弹出模板在ArcGIS 4.16 Angular 10中显示多个功能

<ng-template #popupTemplate>
  <!-- 弹出模板内容 -->
</ng-template>

import { Component, ViewChild } from '@angular/core';

@Component({
  selector: 'app-map',
  templateUrl: './map.component.html',
  styleUrls: ['./map.component.css']
})
export class MapComponent {
  @ViewChild('popupTemplate') popupTemplate: any;
  showPopup: boolean = false;

  togglePopup() {
    this.showPopup = !this.showPopup;
  }
}

<button (click)="togglePopup()">Toggle Popup</button>

<div *ngIf="showPopup">
  <ng-container *ngTemplateOutlet="popupTemplate"></ng-container>
</div>